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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 31677Generated: October 26, 2026

Nitric Acid → HCID 59792590, compound

https://huagongshe.com/reaction/31677

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantSulfuric AcidHCID 1118—
Reactant3-Ethyl-2-methylpyridine1-oxideHCID 59792526—
ProductHCID 59792590HCID 5979259034.5%

Reaction Conditions

Temperature80 °C

Reaction Steps

While cooling a mixture of 3-ethyl-2-methylpyridine 1-oxide (7.35 g, 53.6 mmol) and sulfuric acid (22.7 g, 231=mmol) in an ice bath, fuming nitric acid (3.64 ml, 87.9 mmol) was added dropwise, which was stirred at 80° C. for 8 hours. The reaction mixture was cooled to room temperature and then poured into ice. The obtained aqueous solution was extracted three times with chloroform. The organic layers were combined, dried over anhydrous magnesium sulfate, filtrated and concentrated to obtain the title compound (3.37 g, yield: 34.5%) as yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07425634B2
Source datasetuspto-grants-2008_09
ORD IDord-88dcb29803eb4c77ad1caedad4d4cf69
Source noteuspto-grants-2008_09